Code reusability is a fundamental principle in software development, and MediaWiki is no exception. It's the practice of writing code once and then utilizing it in multiple places, reducing redundancy, improving maintainability, and accelerating development. For beginners venturing into MediaWiki extension development or even complex template creation, understanding code reusability is crucial for efficient and sustainable work. This article will delve into the concepts, benefits, techniques, and best practices for achieving code reusability within the MediaWiki environment. We will cover various aspects, from simple template inclusion to advanced techniques like class inheritance and the use of Hooks.
Why is Code Reusability Important?
Before diving into *how* to achieve code reusability, let's understand *why* it's so important:
**Reduced Redundancy:** Repetitive code leads to larger files, increased complexity, and a higher probability of errors. Reusability eliminates this duplication, making the codebase cleaner and easier to understand. Think of it like building with LEGOs – you wouldn't recreate a brick every time you need one.
**Improved Maintainability:** When a bug is found in a piece of code that's used in multiple places, fixing it in one location automatically fixes it everywhere else. This significantly reduces maintenance effort and the risk of inconsistent behavior. Imagine needing to change a core function used in 20 templates – a reusable function saves immense time and reduces the chance of overlooking an instance.
**Faster Development:** Reusing existing code components speeds up the development process. Instead of writing everything from scratch, developers can leverage pre-built, tested, and reliable modules. This is especially important for large-scale projects or when responding to urgent requests.
**Increased Reliability:** Components that have been thoroughly tested and used in multiple contexts are more likely to be reliable. Each use case acts as a form of additional testing, identifying potential issues early on.
**Consistency:** Reusing code ensures consistency in functionality and behavior across different parts of the wiki. This leads to a more predictable and user-friendly experience.
**Collaboration:** Reusable components encourage collaboration among developers. A well-documented and reusable module can be easily shared and utilized by others.
Techniques for Code Reusability in MediaWiki
MediaWiki provides several mechanisms to facilitate code reusability. These can be categorized based on the level of complexity and the type of code being reused.
1. Templates
Templates are the most basic and widely used form of code reusability in MediaWiki. They allow you to define a reusable block of wiki markup that can be included on multiple pages.
**Simple Inclusion:** Using the `
Template:Infobox Trading Strategy
This article details the use of the `Template:Infobox Trading Strategy` template in MediaWiki. This template is designed to standardize the presentation of information about various trading strategies within a wiki dedicated to financial markets, technical analysis, and trading. It provides a consistent and easily navigable format for users to understand the key characteristics, mechanics, and performance metrics of different strategies. This is crucial for a knowledge base that aims to be both comprehensive and user-friendly.
The primary purpose of `Template:Infobox Trading Strategy` is to create a concise, informative summary of a trading strategy on a dedicated page. This allows readers to quickly grasp the core concepts without needing to read lengthy, detailed explanations. It also facilitates comparison between different strategies. The template focuses on providing structured data, aiding in research and understanding, and promoting a standardized approach to documenting strategies. Without such a template, information could be scattered and inconsistent, making it difficult for newcomers to learn and experienced traders to quickly reference key details.
Usage
To use the template, simply include `Template:Infobox Trading Strategy` at the beginning of a page dedicated to a trading strategy. The template uses a series of parameters to populate the infobox with specific information. Here's a breakdown of each parameter:
`strategy_name`: (Required) The name of the trading strategy. This should be the common name used to refer to the strategy (e.g., "Moving Average Crossover", "Fibonacci Retracement").
`image`: (Optional) A URL to an image illustrating the strategy, such as a chart with the strategy applied. The image should be relevant and informative. Use the `File:ImageName.png` format.
`image_caption`: (Optional) A caption for the image, providing context or explaining what the image depicts.
`type`: (Optional) The category of trading strategy. Examples include "Trend Following", "Mean Reversion", "Breakout", "Scalping", "Day Trading", "Swing Trading", "Position Trading", "Arbitrage", "Algorithmic Trading". Use a link to a relevant wiki page if one exists (e.g., `Trend Following`).
`asset_class`: (Optional) The asset class the strategy is best suited for. Examples include "Forex", "Stocks", "Cryptocurrencies", "Commodities", "Options", "Futures". Use a link where appropriate (e.g., `Forex`).
`timeframe`: (Optional) The recommended timeframe for using the strategy (e.g., "5-minute", "15-minute", "Daily", "Weekly").
`indicators`: (Optional) A comma-separated list of technical indicators used in the strategy. Link to relevant indicator pages where available (e.g., "Moving Average", "RSI", "MACD", "Bollinger Bands").
`risk_level`: (Optional) The level of risk associated with the strategy. Options include "Low", "Moderate", "High", "Very High".
`profit_potential`: (Optional) The potential profit level of the strategy. Options include "Low", "Moderate", "High", "Very High".
`complexity`: (Optional) The complexity of the strategy. Options include "Simple", "Intermediate", "Complex".
`entry_rules`: (Optional) A brief description of the rules for entering a trade. Be concise.
`exit_rules`: (Optional) A brief description of the rules for exiting a trade. Be concise.
`stop_loss`: (Optional) How stop-loss levels are determined (e.g., "Percentage based", "Support/Resistance", "ATR").
`take_profit`: (Optional) How take-profit levels are determined (e.g., "Risk/Reward Ratio", "Resistance Level", "Fibonacci Extension").
`backtesting_results`: (Optional) A summary of backtesting results, including win rate, average profit per trade, and maximum drawdown. Be specific and provide dates for the backtest.
`notes`: (Optional) Any additional notes or considerations regarding the strategy.
`see_also`: (Optional) A comma-separated list of related strategies or concepts. Link to relevant wiki pages.
Example
Here's an example of how the template might be used to document a "Moving Average Crossover" strategy:
The Moving Average Crossover is a widely used trend-following strategy... (rest of the article content)
```
Advanced Usage & Considerations
**Consistent Formatting:** Maintain consistency in the information provided for each strategy. This makes it easier to compare strategies and identify potential opportunities.
**Accuracy:** Ensure the information provided is accurate and up-to-date. Backtesting results should be clearly documented and the methodology explained.
**Objectivity:** Present the strategy objectively, highlighting both its strengths and weaknesses. Avoid making overly optimistic claims.
**Image Quality:** Use high-quality images that are clear and easy to understand. Ensure the images are properly labeled and captioned.
**Regular Updates:** Trading strategies can evolve over time. Regularly review and update the information in the infobox to reflect any changes.
**Backtesting Details:** When providing backtesting results, include details such as the backtesting period, the asset tested, the commission costs, and the slippage assumptions.
**Risk Disclosure:** Always include a disclaimer stating that trading involves risk and that past performance is not indicative of future results.
**Parameter Descriptions:** When describing parameters like `stop_loss` and `take_profit`, be specific about how those levels are calculated. For example, instead of simply saying "Percentage based," specify "2% below entry price."
**Alternative Strategies:** In the `see_also` section, consider linking to alternative strategies that address the same market conditions or trading goals.
**Nested Templates:** While not directly part of this template, consider using nested templates for complex indicators or concepts to avoid cluttering the infobox.
Troubleshooting
**Infobox Not Rendering:** If the infobox is not rendering correctly, double-check the syntax of the template tags and parameters. Ensure that all required parameters are present and that there are no typos.
**Image Not Displaying:** If the image is not displaying, verify that the image file exists and that the URL is correct. Also, check the image permissions to ensure that it is publicly accessible.
**Incorrect Formatting:** If the formatting is incorrect, review the MediaWiki syntax for the template and ensure that it is being used correctly. Pay attention to whitespace and special characters.
**Parameter Conflicts:** If you encounter parameter conflicts, ensure that you are not using the same parameter name multiple times.
Future Enhancements
**Automated Backtesting Integration:** Integrate the template with automated backtesting tools to automatically populate the `backtesting_results` parameter.
**Performance Visualization:** Add a feature to dynamically generate charts and graphs based on the backtesting results.
**Strategy Comparison Tool:** Develop a tool that allows users to compare multiple strategies side-by-side based on the information in the infoboxes.
**User-Contributed Data:** Allow users to contribute data and feedback on strategies, subject to moderation.
**Dynamic Risk Assessment:** Implement a dynamic risk assessment feature that calculates the risk level of a strategy based on its parameters and market conditions.
**Integration with Real-Time Data Feeds:** Connect the template to real-time data feeds to provide live performance updates.
**Multilingual Support:** Translate the template into multiple languages to make it accessible to a wider audience.
**Improved Search Functionality:** Enhance the wiki's search functionality to allow users to easily find strategies based on specific criteria.
This `Template:Infobox Trading Strategy` is a vital tool for building a comprehensive and user-friendly wiki dedicated to trading and technical analysis. By adhering to the guidelines outlined in this article, contributors can ensure that the information presented is consistent, accurate, and informative, ultimately benefiting all users of the wiki. The careful application of this template, combined with diligent research and clear writing, will significantly enhance the quality and value of the wiki's content.
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✓ Educational materials for beginners` syntax, you can insert the content of a template into a page. This is ideal for repetitive elements like navigation menus, infoboxes, or standard warnings.
**Parameters:** Templates can accept parameters, making them more flexible and adaptable. Parameters are passed using the `= value` syntax, allowing you to customize the template's output for each use case. For example, ````wiki
Template:Infobox is a core component of MediaWiki used to create standardized summary boxes, typically displayed in the upper-right corner of an article. These boxes, known as infoboxes, present essential information about the article's subject in a structured and easily digestible format. This article will guide beginners through understanding, creating, and utilizing infoboxes effectively.
What is an Infobox?
An infobox is essentially a Template that defines a specific layout for presenting data. It's designed to quickly convey key facts, such as dates, locations, characteristics, or relevant statistics. Think of it as a snapshot of the most important information, allowing readers to grasp the core details without having to read the entire article.
Infoboxes are particularly useful for:
Biographies: Displaying birthdates, places of birth, occupations, and notable achievements.
Geographical Locations: Presenting coordinates, population, area, and other geographical data.
Organizations: Listing founding dates, headquarters locations, and types of organizations.
Scientific Concepts: Summarizing key properties, classifications, and discoveries.
Films/Books/Games: Displaying release dates, directors/authors, and genre information.
Why Use Infoboxes?
Consistency: Infoboxes promote a consistent look and feel across all articles on a wiki, making it easier for readers to find information. A standardized format is crucial for usability.
Readability: They present information in a clear and concise manner, improving readability and comprehension.
Quick Overview: Infoboxes provide a quick overview of the subject, allowing readers to quickly assess its relevance to their interests.
Data Retrieval: They facilitate data retrieval and analysis, as the information is structured in a predictable format. This is important for Semantic MediaWiki extensions.
Navigation: Infoboxes often contain links to related articles, improving navigation within the wiki.
Understanding the Syntax
Infoboxes are created using MediaWiki's template system. The basic syntax involves using the `{{Infobox` tag, followed by parameters that define the content and layout of the box. Let's break down the key elements:
`{{Infobox` : This opens the infobox template.
`title =` : Specifies the title of the infobox. This is the heading that appears at the top of the box.
`image =` : Specifies the filename of an image to be displayed in the infobox. Use the `File:ImageName.jpgwidth=px` format *within* the parameter value.
`caption =` : Provides a caption for the image.
`header =` : Defines a header for a section within the infobox. You can have multiple `header` parameters to create distinct sections.
`content =` : The main body of the infobox. This is where you'll enter the key information about the subject. You can use standard MediaWiki formatting (e.g., wikilinks, bold text, *italic text*) within the `content` parameter.
`label1 =` , `data1 =` , `label2 =` , `data2 =` , etc.: This is the most common way to define key-value pairs within an infobox. `label1` is the name of the data field (e.g., "Born"), and `data1` is the corresponding value (e.g., "January 1, 1990").
`}}` : This closes the infobox template.
A Simple Example
Let's create a simple infobox for a fictional character named "Alex Johnson":
This code will generate an infobox with the title "Alex Johnson", an image, and two sections: "Personal Information" and "Skills". The "Personal Information" section will display the birthdate, occupation, and nationality, while the "Skills" section will provide a brief description of the character's abilities.
Technical analysis often relies on quickly digestible data, making infoboxes ideal for summarizing key statistical information about assets. For example, an infobox for a stock could include data on its Price-to-Earnings ratio, Dividend Yield, and Beta.
Creating More Complex Infoboxes
Infoboxes can become much more complex, with multiple sections, images, and data points. Here are some advanced techniques:
Using Parameters for Reusability: Instead of hardcoding all the data directly into the infobox, you can define parameters for each piece of information. This makes the infobox more reusable and easier to update.
Conditional Statements: You can use conditional statements (e.g., `#if:`, `#switch:`) to display different information based on the value of a parameter. This allows you to create infoboxes that adapt to different types of subjects.
Templates Within Templates: You can nest templates within infoboxes to create even more complex layouts and functionality.
Using Classes for Styling: You can apply CSS classes to different elements of the infobox to customize its appearance.
Using Existing Infobox Templates
Before creating a new infobox from scratch, it's always a good idea to check if an existing template already meets your needs. Many wikis have a library of pre-built infoboxes for common topics.
To find existing infobox templates:
1. Search the Template Namespace: Go to the `Template:` namespace (e.g., `Template:Infobox Person`, `Template:Infobox Country`). You can use the search function to find templates related to your topic.
2. Browse Category:Templates: Many wikis categorize templates. Look for categories like `Category:Templates` or `Category:Infobox Templates`.
3. Check the Wiki's Documentation: The wiki's documentation may list available infobox templates and provide instructions on how to use them.
Once you find a suitable template, simply copy and paste it into your article and replace the placeholder values with the appropriate information.
Consider the following when choosing an existing infobox:
Relevance: Does the template contain the data fields you need?
Consistency: Is the template used consistently across other articles on the wiki?
Maintainability: Is the template well-maintained and updated?
Customizing Existing Infoboxes
Sometimes, an existing infobox may not perfectly meet your needs. In this case, you can customize it by:
Adding New Parameters: You can add new parameters to the template to display additional information.
Modifying Existing Parameters: You can change the labels or data types of existing parameters.
Changing the Layout: You can adjust the layout of the infobox by rearranging the parameters or adding new sections.
However, be careful when customizing existing infoboxes, especially if they are widely used. Changes to a widely used template can affect many articles on the wiki. It's generally best to create a new template if you need to make significant changes.
Best Practices
Keep it Concise: Infoboxes should be concise and to the point. Avoid including excessive detail.
Use Standardized Labels: Use standardized labels for data fields to ensure consistency across articles.
Provide Sources: Whenever possible, cite sources for the information presented in the infobox.
Use Appropriate Images: Choose images that are relevant to the subject and of high quality.
Test Your Infobox: Before saving your article, preview the infobox to ensure it displays correctly.
Follow Wiki Guidelines: Adhere to the specific infobox guidelines established by your wiki. Many wikis have style guides that dictate how infoboxes should be used.
Accessibility: Ensure your infobox is accessible to users with disabilities. Provide alt text for images and use clear, concise language.
Common Infobox Parameters
Here's a list of common parameters used in infoboxes:
`name` or `title`: The name of the subject.
`image`: The filename of an image.
`caption`: The caption for the image.
`birthdate`: The birthdate of a person.
`deathdate`: The deathdate of a person.
`birthplace`: The place of birth.
`occupation`: The person's occupation.
`nationality`: The person's nationality.
`location`: The location of a place.
`coordinates`: The geographical coordinates of a place.
`population`: The population of a place.
`area`: The area of a place.
`founded`: The founding date of an organization.
`headquarters`: The headquarters location of an organization.
`genre`: The genre of a film, book, or game.
`director`: The director of a film.
`author`: The author of a book.
`developer`: The developer of a game.
`release_date`: The release date of a film, book, or game.
`website`: The official website of the subject.
These are just a few examples. The specific parameters you use will depend on the subject of your article and the purpose of the infobox. Understanding Fibonacci retracement levels can be similar to understanding the parameters within an infobox – both involve identifying key elements and their relationships.
Troubleshooting
Infobox Not Displaying: Check for syntax errors in your code. Make sure you've closed the `
Template:Infobox – A Beginner's Guide
This article provides a comprehensive introduction to the `Template:Infobox` tag in MediaWiki, specifically geared towards users new to wiki editing. Infoboxes are a crucial part of a well-structured and informative wiki, offering a concise summary of key facts about a topic. We will cover what infoboxes are, why they're useful, how to use them, common parameters, customization, troubleshooting, and best practices. This guide is written for MediaWiki 1.40.
What is an Infobox?
An infobox (short for "information box") is a standardized template used to present a summary of vital information about a subject in a consistent and visually appealing format. Typically located in the top-right corner of a wiki page, the infobox acts as a quick reference guide for readers. Think of it as a snapshot of the most important details. Unlike free-form text within the article body, infoboxes are structured, using predefined fields (parameters) to display data. This standardization aids readability and allows for easy comparison between different topics. For example, an infobox for a country might include fields for population, capital, official language, and area. An infobox for a stock might include fields for ticker symbol, company name, industry, and current price. The aim is to present essential information in a concise, easily digestible manner. Understanding Help:Templates is fundamental to understanding infoboxes; they *are* templates.
Why Use Infoboxes?
Infoboxes offer several significant advantages:
**Improved Readability:** A well-formatted infobox allows readers to quickly grasp the core details of a topic without having to scan through large blocks of text.
**Consistency:** Using templates ensures consistent presentation across all articles, making the wiki more professional and user-friendly. This consistency helps readers navigate and understand the information presented. Compare this to the chaotic appearance of articles without consistent formatting.
**Data Summarization:** Infoboxes condense complex information into a manageable format, highlighting key facts.
**Navigation:** Infoboxes often contain links to related articles, enhancing navigation within the wiki.
**Data Mining & Automated Processing:** The structured data within infoboxes can be used for automated tasks such as generating lists, reports, and other derived content. This is particularly useful for large wikis with extensive databases of information.
**Visual Appeal:** Infoboxes break up the monotony of text and add visual interest to a page.
How to Use an Infobox: A Step-by-Step Guide
1. **Find an Existing Infobox Template:** Before creating a new infobox, check if one already exists for your topic. Browse the Special:Templates page to search for relevant templates. For example, if you're writing about a chemical compound, search for "Infobox chemical." Using an existing template is *always* preferred, as it ensures consistency and reduces maintenance.
2. **Include the Template in Your Article:** Once you've found a suitable template, include it in your article using the following syntax:
Replace "Infobox Chemical" with the actual name of the template. This will insert the basic structure of the infobox into your article.
3. **Populate the Parameters:** Infobox templates have predefined parameters (fields) that you need to fill in with specific data. The documentation for each template will list these parameters and explain their purpose. You can find the documentation by clicking the "What links here" link on the template's page (e.g., Special:WhatLinksHere/Template:Infobox Chemical). Parameters are typically specified as `parameter_name = parameter_value`. For example:
```wiki
{{Infobox Chemical
name = Water
formula = H₂O
molar_mass = 18.015 g/mol
density = 1.00 g/cm³
}}
```
4. **Preview and Edit:** Always preview your changes before saving the article. This allows you to check that the infobox is displaying correctly and that all the data is accurate. Edit the parameters as needed to refine the appearance and content of the infobox.
Common Infobox Parameters
While the specific parameters vary depending on the template, some common ones include:
**name:** The primary name of the subject.
**image:** The name of an image file to display in the infobox. Use `image = Example.jpg`.
**caption:** A caption for the image.
**alt:** Alternative text for the image (for accessibility).
**label1/data1, label2/data2, etc.:** Generic parameters for adding custom labels and data. These are useful when a template doesn't have a specific parameter for a particular piece of information.
**unit1, unit2, etc.:** Units associated with the data values.
**link1, link2, etc.:** Links associated with the data values.
**color:** Background color of the infobox (use cautiously).
**above:** Text that appears above the main content of the infobox.
**below:** Text that appears below the main content of the infobox.
The specific parameters and their usage are *always* documented on the template's page. Refer to that documentation for accurate information.
Customizing Infoboxes
While using existing templates is recommended, you may sometimes need to customize them to suit your specific needs. There are several ways to do this:
**Using Generic Parameters:** As mentioned earlier, `label1/data1`, `label2/data2`, etc., allow you to add custom fields without modifying the template itself.
**Creating New Templates:** If you need significant customization, you can create a new infobox template. This requires a good understanding of MediaWiki template syntax and is best left to experienced users. See Help:Creating templates for more information.
**Modifying Existing Templates (with Caution):** If you have the necessary permissions, you can modify existing templates. However, this should be done with extreme caution, as changes to templates can affect many articles. Always discuss significant changes with other editors before implementing them. Consider creating a sub-template for customization instead of directly altering the main template. This allows for easier rollback if necessary.
**Using Conditional Statements:** You can use conditional statements (e.g., `#if`, `#ifeq`) within templates to display different content based on the values of certain parameters. This allows for greater flexibility and adaptability.
Troubleshooting Infobox Issues
Here are some common problems you might encounter when working with infoboxes and how to fix them:
**Infobox Not Displaying:** Ensure you've included the template correctly using the `Template:Template Name` syntax. Check for typos in the template name. Make sure the template exists.
**Incorrect Data Displaying:** Double-check the parameter values you've entered. Ensure you're using the correct units and formatting. Consult the template documentation for guidance.
**Image Not Displaying:** Verify that the image file exists and is uploaded to the wiki. Ensure you've entered the correct image name in the `image` parameter. Check the image's alt text.
**Infobox Formatting Issues:** Incorrect parameter usage or syntax errors can cause formatting problems. Review the template documentation and your code carefully. Use the preview function to identify and correct errors.
**Template Errors:** If a template contains errors, it may not display correctly. Check the template's page for error messages. Report the error to the template's maintainer.
Best Practices for Infoboxes
**Consistency is Key:** Use existing templates whenever possible. If you create a new template, ensure it's consistent with the style and format of other infoboxes on the wiki.
**Accuracy:** Ensure that all the data in the infobox is accurate and up-to-date. Cite your sources if necessary.
**Conciseness:** Keep the infobox concise and focused on the most important information. Avoid including unnecessary details.
**Accessibility:** Provide alternative text for images to ensure accessibility for users with visual impairments.
**Documentation:** Document your templates clearly, explaining the purpose of each parameter.
**Maintainability:** Write templates that are easy to maintain and update.
**Avoid Excessive Customization:** While customization is possible, avoid making changes that deviate significantly from the standard template format.
**Test Thoroughly:** Always test your infoboxes thoroughly before saving the article.
**Collaboration:** Discuss significant changes to templates with other editors before implementing them.
Advanced Infobox Techniques
**Template Loops:** For displaying lists of data, you can use template loops (using parser functions like `#recurse`).
**Data Structures:** Utilize data structures within templates to organize and manage complex information.
**Modules:** Leverage Lua modules to create more powerful and flexible templates. This requires advanced programming knowledge. See Help:Lua for details.
**External Data Sources:** Integrate data from external sources (e.g., databases, APIs) using extensions like Wikidata.
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Image Not Displaying: Verify that the image file exists and that you've used the correct filename. Ensure the image is uploaded to the wiki.
Parameters Not Working: Double-check the spelling of the parameters and make sure you're using the correct syntax.
Layout Issues: Experiment with different formatting options to adjust the layout of the infobox. Consider using CSS classes to customize the appearance.
If you're still having trouble, consult the wiki's documentation or ask for help from other users. Learning about Elliott Wave Theory can also teach you about pattern recognition, a skill useful for debugging template issues.
Your wiki's specific infobox guidelines. Understanding Bollinger Bands requires understanding the underlying principles of statistical deviation, just as mastering infoboxes requires understanding the principles of template syntax.
Candlestick patterns – Recognizing patterns is key to both trading and effective template usage.
Moving Averages – Smoothing out data, similar to how infoboxes present a summarized view.
Relative Strength Index (RSI) – A metric for assessing momentum, akin to quickly grasping key facts from an infobox.
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✓ Educational materials for beginners`.
**Parser Functions:** Advanced templates can utilize Parser functions to perform calculations, manipulate strings, and dynamically generate content. This adds significant power and flexibility to templates.
**TemplateData:** TemplateData allows you to define a structured description of a template's parameters and usage, making it easier for editors to understand and use the template correctly. TemplateData is crucial for user experience and maintainability.
Templates are excellent for reusing presentation logic and relatively simple data structures. However, they are limited in their ability to handle complex logic or interact with the underlying PHP code.
2. Modules (PHP)
For more complex code, Modules offer a powerful way to encapsulate and reuse PHP code. Modules are essentially PHP files that define functions, classes, and other code components.
**Module Loading:** Modules are loaded using the `wfLoadExtensionMessages()` or `wfLoadExtension()` functions.
**Namespaces:** Modules can be organized into namespaces to prevent naming conflicts and improve code organization.
**Dependencies:** Modules can declare dependencies on other modules, ensuring that all required components are loaded in the correct order.
**Hooks:** Modules can register Hooks to intercept and modify MediaWiki's behavior. This is a powerful technique for adding custom functionality without modifying core MediaWiki code.
**Classes and Inheritance:** Modules can define classes using object-oriented programming principles. Inheritance allows you to create new classes that inherit the properties and methods of existing classes, further promoting code reusability.
Modules are ideal for reusing complex logic, interacting with databases, and implementing custom features.
3. Extension Classes
Creating a full-fledged Extension is the most robust way to encapsulate and reuse code. Extensions allow you to package your code into a self-contained unit that can be easily installed and uninstalled on any MediaWiki instance.
**Extension.json:** This file defines the extension's metadata, including its name, version, description, and dependencies.
**Special Pages:** Extensions can define Special pages to provide custom administrative interfaces or user-facing features.
**Hooks:** Extensions heavily rely on Hooks to integrate with MediaWiki’s core functionality.
**API Integration:** Extensions can extend the MediaWiki API to provide new endpoints and functionality.
**Configuration:** Extensions can define configuration options that allow administrators to customize the extension's behavior.
Extensions are best suited for large-scale projects or when you need to provide a comprehensive set of features.
4. Skinning and CSS
Reusability extends beyond PHP and wiki markup. CSS can be reused across multiple skins to maintain a consistent look and feel.
**Common CSS:** Define a common CSS file that contains styles that are shared by all skins.
**Skin-Specific CSS:** Override the common CSS in skin-specific files to add custom styles.
**CSS Classes:** Use meaningful CSS classes to apply styles to specific elements, making it easier to reuse styles across different parts of the wiki.
5. JavaScript
JavaScript can also be reused in MediaWiki to add dynamic functionality to pages.
**Resource Loader:** The Resource Loader is used to manage JavaScript and CSS files.
**Modules:** JavaScript code can be organized into modules to improve code organization and reusability.
**jQuery:** MediaWiki includes jQuery, a popular JavaScript library that simplifies many common tasks.
Best Practices for Code Reusability
To maximize the benefits of code reusability, follow these best practices:
**Plan Ahead:** Before writing any code, consider whether it might be reusable in the future.
**Keep it Simple:** Reusable components should be focused and perform a single, well-defined task. Avoid creating overly complex or monolithic components.
**Document Thoroughly:** Document your code clearly and concisely, explaining its purpose, parameters, and usage. Use Documentation subpages for extensions and modules.
**Use Meaningful Names:** Choose descriptive names for variables, functions, and classes.
**Follow Coding Standards:** Adhere to consistent coding standards to improve readability and maintainability. The MediaWiki Coding Conventions are a good starting point.
**Test Thoroughly:** Test your reusable components thoroughly to ensure that they work correctly in all expected scenarios.
**Version Control:** Use a version control system like Git to track changes to your code and collaborate with others.
**Refactor Regularly:** Periodically review your code and refactor it to improve its structure, readability, and reusability.
**Consider Abstraction:** Use abstract classes and interfaces to define common interfaces for related components.
**Avoid Hardcoding:** Avoid hardcoding values or configurations directly into your code. Instead, use configuration options or parameters.
Advanced Considerations
**Dependency Injection:** Consider using dependency injection to make your code more testable and reusable.
**Design Patterns:** Familiarize yourself with common design patterns, such as the Factory pattern or the Observer pattern, to help you design reusable components.
**Performance:** Be mindful of performance implications when reusing code. Avoid unnecessary overhead or duplication.
**Security:** Ensure that your reusable components are secure and do not introduce any vulnerabilities.
Technical Analysis, Strategies, and Trends Links
Here are some links related to strategies, technical analysis, indicators, and trends (as requested):
Code reusability is a cornerstone of efficient and maintainable MediaWiki development. By embracing the techniques and best practices outlined in this article, you can write code that is more robust, reliable, and easier to manage. Remember to prioritize planning, documentation, and testing to ensure that your reusable components are truly valuable assets. Whether you’re building a simple template or a complex extension, a commitment to code reusability will pay dividends in the long run.
